Date: Mon, 29 Aug 2005 17:41:43 +0530 From: Bharath Bhushan <bharath.bhushan@gmail.com> To: freebsd-hackers@freebsd.org Subject: interrupt handlers - FreeBSD 4.9 Message-ID: <29683db2050829051168d821be@mail.gmail.com>
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1) What is the purpose of the two interrupt handler arrays ihandler[]
and intr_handlers[]?
What I saw on my system:
(kgdb) print intr_handler
$8 =3D {0x302b2d04 <clkintr>, 0x302b9bd4 <atkbd_isa_intr>,
0x302b6708 <isa_strayintr>, 0x302be648 <siointr>, 0x302be648 <siointr>,
0x302b6708 <isa_strayintr>, 0x302b53e0 <fdc_intr>, 0x30268128 <dc_intr>,
0x302b2fa0 <rtcintr>, 0x302b6708 <isa_strayintr>,
0x302b6708 <isa_strayintr>, 0x30268128 <dc_intr>,
0x302b6708 <isa_strayintr>, 0x302b6708 <isa_strayintr>,
0x3017606c <ata_intr>, 0x3017606c <ata_intr>}
(kgdb) p/a ihandlers
$11 =3D 0x302a522e <Xresume0>
(kgdb) p/a *ihandlers
$12 =3D 0x1ec05ff
2) Does cpl contain the mask to block hardware and software interrupts
or just for the software interrupts?
--=20
Thanks
Bharath
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